the international longshoreman's association is calling for that action if a deal on a new contract is not reached soon. a walkout by 15,000 dock workers would hold billions of dollars worth of imported goods. >>> and thousands of bay area nurses plan to walk off the job on christmas eve. a spokesman for the california nurses association says it will be a one-day strike, the 8th since september 2011. it will affect seven sutter hospitals in san francisco and two others in san jose. they are add odds over benefits and staffing. >>> they are installing different piping at the richmond refinery to prevent fires. according to the "san francisco chronicle," this kind of piping is made to resist the type of corrosion that's believed to have caused the august fire at chevron. officials tests on the fire are not complete. >>> later this week, state regulators are expected to approve a pg&e plan aimed at improving its pipeline safety guidelines. it is all in response to the explosion of a pg&e pipeline that killed eight people this san bruno two years ago. the "san francisco examiner" says the